From c5db32a143604f44672cfe312ffc6edfd5c86a4a Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Tue, 29 Mar 2022 10:31:51 +0200 Subject: [PATCH] [nvptx] Add march alias for misa The target option misa has the following description: ... $ gcc --target-help 2>&1 | grep misa -misa= Specify the PTX ISA target architecture to use. ... The name misa is somewhat poorly chosen. It suggests that for a use -misa=sm_30, sm_30 is the name of a specific Instruction Set Architecture. Instead, sm_30 is the name of a specific target architecture in the generic PTX Instruction Set Architecture. Futhermore, there's mptx, which also has ISA in the description: ... -mptx= Specify the PTX ISA version to use. ... Add the more intuitive alias march for misa: ... $ gcc --target-help 2>&1 | grep march -march= Alias: Same as -misa=. ... Tested on nvptx. gcc/ChangeLog: 2022-03-29 Tom de Vries * config/nvptx/nvptx.opt (march): Add alias of misa. gcc/testsuite/ChangeLog: 2022-03-29 Tom de Vries * gcc.target/nvptx/main.c: New test. * gcc.target/nvptx/march.c: New test. --- gcc/config/nvptx/nvptx.opt | 4 ++++ gcc/testsuite/gcc.target/nvptx/main.c | 7 +++++++ gcc/testsuite/gcc.target/nvptx/march.c | 5 +++++ 3 files changed, 16 insertions(+) create mode 100644 gcc/testsuite/gcc.target/nvptx/main.c create mode 100644 gcc/testsuite/gcc.target/nvptx/march.c diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt index 1f684ed..b5d0170 100644 --- a/gcc/config/nvptx/nvptx.opt +++ b/gcc/config/nvptx/nvptx.opt @@ -56,6 +56,10 @@ misa= Target RejectNegative ToLower Joined Enum(ptx_isa) Var(ptx_isa_option) Init(PTX_ISA_SM30) Specify the PTX ISA target architecture to use. +march= +Target RejectNegative Joined Alias(misa=) +Alias: + Enum Name(ptx_version) Type(int) Known PTX ISA versions (for use with the -mptx= option): diff --git a/gcc/testsuite/gcc.target/nvptx/main.c b/gcc/testsuite/gcc.target/nvptx/main.c new file mode 100644 index 0000000..3af2b57 --- /dev/null +++ b/gcc/testsuite/gcc.target/nvptx/main.c @@ -0,0 +1,7 @@ +/* { dg-do link } */ + +int +main (void) +{ + return 0; +} diff --git a/gcc/testsuite/gcc.target/nvptx/march.c b/gcc/testsuite/gcc.target/nvptx/march.c new file mode 100644 index 0000000..ec91f21 --- /dev/null +++ b/gcc/testsuite/gcc.target/nvptx/march.c @@ -0,0 +1,5 @@ +/* { dg-options "-march=sm_30"} */ + +#include "main.c" + +/* { dg-final { scan-assembler-times "\\.target\tsm_30" 1 } } */ -- 2.7.4